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Computational fluid dynamics analysis of a journal bearing with surface texturing
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Maskinelement.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik.ORCID-id: 0000-0001-7599-0895
2008 (engelsk)Inngår i: Proceedings of the Institution of mechanical engineers. Part J, journal of engineering tribology, ISSN 1350-6501, E-ISSN 2041-305X, Vol. 222, nr 2, s. 97-107Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

An analysis of a lubricated conformal contact is carried out to study the effect of surface texture on bearing friction and load carrying capacity using computational fluid dynamics. The work focuses on a journal bearing with several dimples. Two- and three-dimensional bearing geometries are considered. The full Navier-Stokes equations are solved under steady-state conditions with a multi-phase flow cavitation model.The coefficient of friction can be reduced if a texture of suitable geometry is introduced. This can be achieved either in the region of maximum hydrodynamic pressure for a bearing with high eccentricity ratio or just downstream of the maximum film for a bearing with low eccentricity ratio. An additional pressure build-up produced as a result of the surface texture has been shown at low eccentricity ratios.

sted, utgiver, år, opplag, sider
2008. Vol. 222, nr 2, s. 97-107
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Forskningsprogram
Maskinelement; Strömningslära
Identifikatorer
URN: urn:nbn:se:ltu:diva-3374DOI: 10.1243/13506501JET319ISI: 000255235400004Scopus ID: 2-s2.0-42949177991Lokal ID: 13282190-09e9-11dd-ae49-000ea68e967bOAI: oai:DiVA.org:ltu-3374DiVA, id: diva2:976232
Merknad
Validerad; 2008; 20080414 (cervante)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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Cupillard, SamuelGlavatskih, SergeiCervantes, Michel

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